Instrument for preparing bio-ink



FIG. 1 is a perspective view of an instrument for preparing bio-ink,showing our new design;

FIG. 2 is a front elevation view of FIG. 1;

FIG. 3 is a rear elevation view of FIG. 1;

FIG. 4 is a left side elevation view of FIG. 1;

FIG. 5 is a right side elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is bottom plan view of FIG. 1.

The broken lines depict portions of the instrument for preparing bio-inkthat form no part of the claimed design.

CLAIM The ornamental design for an instrument for preparing bio-ink, asshown and described.